Method and apparatus of recording a multi-channel stream, and a recording medium containing a multi-channel stream recorded by said method
First Claim
1. A method of recording a digital data stream on a recording medium, the method comprising:
- (a) recording a multi-path stream including video data of different paths, the video data including a plurality of data blocks, the data blocks of different paths being interleaved with each other; and
(b) creating navigation information for the video data and recording the created navigation information on the recording medium,wherein the navigation information includes a first navigation unit, the first navigation unit including at least one second navigation unit, the second navigation unit including an identifier identifying one of the different paths of the video data having at least one entry point, the second navigation unit referencing at least two third navigation units each controlling one of the different paths, each of the third navigation units identifying at least one entry point in the video data for the one path controlled by the third navigation unit, a first of the third navigation units including position information of the at least one entry point for a first of the different paths, a second of the third navigation units including position information of the at least one entry point for a second of the different paths, the first navigation unit being separate from the third navigation units.
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Abstract
The present invention relates to method and apparatus of recording a multi-channel data stream on a recording medium in such a manner that substreams of digital channels constituting the multi-channel data stream can be distinguished each other in reproduction. The present recording method records a multi-channel stream composed of substreams belonging to plural selected channels in a single stream object while grouping every partial stream of same channel to a data block and interleaving the data blocks of different channels each other, creates a piece of search information for each substream contained in the recorded multi-channel stream, and records the created plural pieces of search information on the recording medium. The present method makes it possible to selectively search and reproduce each substream among a multi-channel stream recorded on a recording medium, thereby improving use convenience of a recording machine such as a digital video recorder.
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Citations
24 Claims
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1. A method of recording a digital data stream on a recording medium, the method comprising:
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(a) recording a multi-path stream including video data of different paths, the video data including a plurality of data blocks, the data blocks of different paths being interleaved with each other; and (b) creating navigation information for the video data and recording the created navigation information on the recording medium, wherein the navigation information includes a first navigation unit, the first navigation unit including at least one second navigation unit, the second navigation unit including an identifier identifying one of the different paths of the video data having at least one entry point, the second navigation unit referencing at least two third navigation units each controlling one of the different paths, each of the third navigation units identifying at least one entry point in the video data for the one path controlled by the third navigation unit, a first of the third navigation units including position information of the at least one entry point for a first of the different paths, a second of the third navigation units including position information of the at least one entry point for a second of the different paths, the first navigation unit being separate from the third navigation units. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An apparatus for recording a digital data stream on a recording medium, the apparatus comprising:
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a pickup configured to record data on the recording medium; and a controller, operably coupled to the pickup, configured to create navigation information for a multi-path stream including video data of different paths, and the controller configured to control recording the multi-path stream, the video data including a plurality of data blocks, the data blocks of different paths being interleaved with each other and the created navigation information on the recording medium, wherein the navigation information includes a first navigation unit, the first navigation unit including at least one second navigation unit, the second navigation unit including an identifier identifying one of the different paths of the video data having at least one entry point, the second navigation unit referencing at least two third navigation units each controlling one of the different paths, each of the third navigation units identifying at least one entry point in the video data for the one path controlled by the third navigation unit, a first of the third navigation units including position information of the at least one entry point for a first of the different paths, a second of the third navigation units including position information of the at least one entry point for a second of the different paths, the first navigation unit being separate from the third navigation units. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A recording medium, comprising:
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a data area storing a multi-path stream including video data of different paths, the video data including a plurality of data blocks, data blocks of different paths being interleaved with each other; and a navigation area storing navigation information for the multi-path stream, wherein the navigation information includes a first navigation unit, the first navigation unit including at least one second navigation unit, the second navigation unit including an identifier identifying one of the different paths of the video data having at least one entry point, the second navigation unit referencing at least two third navigation units each controlling one of the different paths, each of the third navigation units identifying at least one entry point in the video data for the one path controlled by the third navigation unit, a first of the third navigation units including position information of the at least one entry point for a first of the different paths, a second of the third navigation units including position information of the at least one entry point for a second of the different paths, the first navigation unit being separate from the third navigation units. - View Dependent Claims (18)
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19. A method of reproducing data contained in a multi-path stream including video data of different paths, the video data including a plurality of data blocks, data blocks of different paths being interleaved with each other on a recording medium, the method comprising:
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(a) reading navigation information from a navigation area of the recording medium, the navigation information including a first navigation unit, the first navigation unit including at least one second navigation unit, the second navigation unit including an identifier identifying one of the different paths of the video data having at least one entry point, the second navigation unit referencing at least two third navigation units each controlling one of the different paths, each of the third navigation units identifying at least one entry point in the video data for the one path controlled by the third navigation unit, a first of the third navigation units including position information of the at least one entry point for a first of the different paths, a second of the third navigation units including position information of the at least one entry point for a second of the different paths, the first navigation unit being separate from the third navigation units; and (b) reproducing each path of the multi-stream path according to the at least one second navigation unit and the third navigation units controlling the path and referenced by the at least one second navigation unit. - View Dependent Claims (20, 21)
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22. An apparatus for reproducing data contained in a multi-path stream including video data of different paths, the video data including a plurality of data blocks, data blocks of different paths being interleaved with each other on a recording medium, the apparatus comprising:
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a pickup configured to reproduce data recorded on the recording medium; and a controller, operably coupled to the pickup, configured to control reproducing navigation information from a navigation area of the recording medium, the navigation information including a first navigation unit, the first navigation unit including at least one second navigation unit, the second navigation unit including an identifier identifying one of the different paths of the video data having at least one entry point, the second navigation, unit referencing at least two third navigation units each controlling one of the different paths, each of the third navigation units identifying at least one entry point in the video data for the one path controlled by the third navigation unit, a first of the third navigation units including position information of the at least one entry point for a first of the different paths, a second of the third navigation units including position information of the at least one entry point for a second of the different paths, the first navigation unit being separate from the third navigation units, and the controller configured to control reproducing each path contained in the multi-path stream according to the at least one second navigation unit the third navigation units controlling the path and referenced by the at least one second navigation unit. - View Dependent Claims (23, 24)
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Specification